The following dialog is for questions 18to 20. Mrs. Lita: I've sent you an e-mail about the reunion party of our high school. Would you like to come? Mr. Bonar: Are you the committee of the event? Mrs. Lita: Yes; I am the secretary. Mr. Bonar: I haven't read the e-mail. When will it be? Mrs. Lita: Sunday, September 29, 2019. Mr. Bonar: It would be delighted to meet our friends, but I think I couldn't come. Mrs. Lita: Why? Mr. Bonar: I am going to Singapore for business. Mrs. Lita: That's O.K., but please send me the response card in your e-mail. Mr. Bonar: Sure. Mrs. Lita: Good luck with your business! Mr. Bonar: Thank you. Best regards to our friends, too. Mrs. Lita and Mr. Bonar are ____.

Question

The following dialog is for questions 18 to 20.

Mrs. Lita: I've sent you an e-mail about the reunion party of our high school. Would you like to come?

Mr. Bonar: Are you the committee of the event?

Mrs. Lita: Yes; I am the secretary.

Mr. Bonar: I haven't read the e-mail. When will it be?

Mrs. Lita: Sunday, September 29, 2019.

Mr. Bonar: It would be delighted to meet our friends, but I think I couldn't come.

Mrs. Lita: Why?

Mr. Bonar: I am going to Singapore for business.

Mrs. Lita: That's O.K., but please send me the response card in your e-mail.

Mr. Bonar: Sure.

Mrs. Lita: Good luck with your business!

Mr. Bonar: Thank you. Best regards to our friends, too.

Mrs. Lita and Mr. Bonar are ____. $\;$

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